Electric motor or generator



(No Model.)

2 Sheets-Sheet 1. J. P. 'SEIBERLING. ELECTRIC MOTOR 0R GENERATOR.

No. 450,639. Patented Apr. 21, 1891.

BE l

INVENTOI? .m

WITNESSES:

'A TTORNEYS 2 Sheets-Sl1eet 2.

(No Model.)

J. I. SEIBERLING. ELECTRIC MOTOR 0R GENERATOR.

No. 450,639. Patented Apr. 21,1891.

ATTORNEYS.

men. n. 5

m2 NORIHS warns 20., KNDTO-LXTHLL, msmu UNITED STATES PATENT ELECTRICMOTOR OR GENERATOR.

$PECIFIGATION forming part of Letters Patent No. 450,639, dated April21, 1891.

Application filed November 17, 1890. Serial No- 371,704. (No model.)

T 0 all whom, it may concern.-

Be it known that 1, JOHN F. SEIBERLING, a citizen of the United States,and a resident of Akron, county of Summit, and State of Ohio, haveinvented a new and useful Improvement in Electric Motors, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, making part of this specification.

My invention relates to the construction of the pole-pieces of thefield-magnets in two parts, adjustable one relative to the other andhaving faces adjustable at the sides of the armature; also, to theconstruction of the armature for facilitating removal and repair of itsparts; and it further relates to certain details of construction andarrangement of parts for facilitating their adjustment, all ashereinafter described and claimed.

In the accompanying drawings, Figure 1 represents my improved motor inside elevation. Fig. 2 is an end elevation of the same. Fig. 3 is a planview showing the magnets and armature in section. Fig. 4. is a sideelevation of the armature, and Fig. 5 shows in detail parts of thearmature.

Aindicates the base-plate or frame on which the parts of the machine aremounted, and A A standard-brackets thereon, one on either side andcomposed each of uprights having at their upper ends a horizontalconnectingbar a, provided at its ends with upright ears Ct a, betweenwhich is secured a bearingblock A having perforated upright lugs or carsa? a at its ends, the perforations in said ears being SCI6\ -th readedto receive set-screws b and b the points of which enter sockctsin thesides of and support bearing-sleeves or trunnion-blocks B. The blocks Awith the trunnion-blocks supported therein, are made adjustablevertically by means of screws 1) 12, passing up through the horizontalbar a, and by adjusting the screws Z) and b said trunnion-blocks B andthe armature-shaft B, journaled therein, can be adjusted laterally, asrequired.

The shaft B has a band or driving wheel O, fast on one end, and betweenthe trunnionblocks B B it has the armature and the commutator secured toit in any suitable manner. The armature is made in the form of a wheelhaving a central hub D, provided with radial arms or spokes D, which arerecessed near theirouter ends to receive the shouldered ends (Z of thesections or segments D which form the rim, and are secured in thenotchedor recessed ends of the radial arms D by means of screws or bolts (1.Upon the rim thus formed and between the radial arms D the core E, alsomade in sections, is mounted, oneor more sections in each space betweenthe arms D D, and each provided with a central perforation 6, adaptingit to receive and be held in place by the removable rim-segnient onwhich it is mounted. These sections, one of which is shown in outer faceview and in cross-section in Fig. 5, are each wound separately, thusadapting it in case of injury to be taken off by removing the bolts d,connecting its section of rim with the arms D, after which it can beremoved from said section and rewound or repaired and replaced withoutdisturbing the other sections of the rim or core. The wheel or armaturehas two rings d and (1 cast on or secured to its arms D between its huband rim and forming connecting cross bars or braces, which serve tosupport the ends of the wires g or 9, extending to and from thecore-sections and between it and the commutator, (indicated at F,) andwhich may be of any usual or preferred construction. nected to andextending from one pole or binding-screw f of the commutator in loopform into and partly around the ring (1 or over said ring, referencebeing had to Fig. 3, thence to the core-block E, around which it iswrapped in any usual manner of forming the coil, the other end of thewire passing from the core-block down under the ring (1 on the sideadjacent to said block, thence crossing to the opposite side of the hubat the sides or the intervening spokes, as shown in Fig. 4, and over thering (1 upon that side and down to the opposite pole or bindingscrew fof the commutator, as shown. The wire g passes in the reverse directionfrom the pole f around the ring d and its coreblock, and thence underand over the ring (1" to the pole f, as shown. By simply detaching theends of the wires on any one section of rim and removing the boltsfastening said The wire g is shown with one end con- TOC section thesection or sections of core thereon can be readily removed and repairedand re placed or renewed, as required.

The pole-pieces of the field-magnets are made concave on their inneradjacent faces, conforming to the peripheral surface of the armature, asshown in Fig. 1, and are made each in two parts 11 and H, the part IIbeing angular or L..-shaped in cross section, as shown in Fig. 3,andsecured to the base-plate A by means of slotted ears and bolts 71 and h,which permit its lateral adjustment. The part H is similarly secured tothe base-plate by a slotted ear and a bolt at ]L2, and to the part H bymeans of latorally-projecting slotted ears and a bolt at 77. whichpermit its adjustment with or independently of the main portion H. Thepart H forms a projecting flange on the face of the plate H, similar toand opposite the flange H making the magnet approximately U-shaped incross-section, as shown in Fig. To the backs or outer sides of thesepole-pieces the field-wires (indicated at H are applied, arranged in anyusual or suitable manner. The armature reaches within the concave andopen U- shaped side of the magnet, which is thus provided with threefaces, (indicated at i and t" i 'i facing the peripheral face of thearmature, and 2" and i the sides thereof,) thereby exposinggreatly-increased surface to the armature as compared with the ordinaryc011- struction.

By the arrangement of the adj listing-screws I) b and Z) and inconnection with the bearing and trunnion blocks A and B, thearmature-shaft and armature can be readily adjusted either vertically orlaterally to bring it into the required relation to the faces of themagnets, and the magnets themselves can be adjusted laterally bodily, orthe part H can be adjusted relatively to the part H for bringing theside faces 1'' and i into proper and most effective relation to thesides of the armature.

By the construction of the armature-wheel as described all obstructionsor projections are removed from the sides and periphery of the armature,and the opposing faces of the magnets can consequently be brought intothe most effective relation.

Having now described my invention,I claim as neworally relatively to theother,substantially as described.

2. The combination, in an electric motor, of the pole-pieces of thefield-magnets, having each three surfaces conforming to the sides andperiphery of the armature, and one of which surfaces is adjustable toand from the opposing surface, and the armature having its sides andperiphery unobstructed, substantially as described.

3. The combination, in an electric motor, of the armature, the adjustable pole-pieces, mad e each in two parts and having at the sides ofthe armature opposing faces, one of which is adjustable relative to theother, having surfaces on both sides and at the periphery of saidarmature, and the adjustable shaft on which said armature is mounted,substantially as described.

a. The combination, with an armature having three unobstructed sides, ofthe adjustable pole-pieces of the field-magnets, made each in two partsadjustable one relative to the other and having three faces conformingto said three armature-sides, and the field coils or. wires secured tothe backs of said adjustable pole-picces, substantially as described.

5. The armature-wheel having the recessed radial arms, the notched andremovable rimsections, and rings (Z and d connecting said arms betweenthe hub and rim, substantially as described.

6. The combination, in an armature-wheel, of the removable rim-segments,made each in a single piece having shouldered ends, the radial armshaving notched or recessed ends toreeeive said shouldered segment ends,the core-sections mounted on said rim-segments, and the bolts foruniting the segments to the radial arms, substantially as described.

7. The combination, in an electric motor. of

an armature-wheel having radial arms, the

connecting-rings or cross-bars between said arms, the sectional rim, thecore, also made in sections separately wound, and the commutatorconnected therewith, substantially as described.

In testimony whereof I have hereunto set my hand this 10th day ofNovember, A. D. 1890.

JNO. F. SEIBERLING.

Witnesses:

O. V. HUGHES, H. I. MoGILL.

